Dear monks,

I am a neophyte perl programmer and I request your wisdom on a problem that perplexs me.

My perl script parses /var/log/maillog and creates a hash using the message id as the key and the to/from as values thusly: 

$mailarray{$msgid}{"from"}= $from
  if ($msgid, $from)  = m/.*\[\d+\]: ([a-fA-F0-9]+): from=<(.*)>,/;

$mailarray{$msgid}{"to"}= $mailarray{$msgid}{"to"} . " " . $to,/
  if ($msgid, $to)  = m/.*\[\d+\]: ([a-fA-F0-9]+): to=<(.*)>,/;

[download]

I can easily sort onthe $msgid key, but I now need to sort on the $from (or $to) value. The only wisdom I could find is on ordering by the $msgid key.

Can anyone enlighten this novice perl user?

Thank you.

In reply to Sorting hashes on non-keys by Anonymous Monk

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